1303441403340 has 96 divisors (see below), whose sum is σ = 3740625391104. Its totient is φ = 338927664640.

The previous prime is 1303441403279. The next prime is 1303441403353. The reversal of 1303441403340 is 433041443031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1303441403298 and 1303441403307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4552297 + ... + 4830143.

It is an arithmetic number, because the mean of its divisors is an integer number (38964847824).

Almost surely, 2^{1303441403340} is an apocalyptic number.

1303441403340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303441403340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870312695552).

1303441403340 is an abundant number, since it is smaller than the sum of its proper divisors (2437183987764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303441403340 is a wasteful number, since it uses less digits than its factorization.

1303441403340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279807 (or 279805 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1303441403340 its reverse (433041443031), we get a palindrome (1736482846371).

The spelling of 1303441403340 in words is "one trillion, three hundred three billion, four hundred forty-one million, four hundred three thousand, three hundred forty".